Is Java update important?

java updates are important they are usually bug fixes and security boosts and when you download the new java it doesn't remove the old version so you will have to do it manually it wont effect java it will just free up some space.

Its only important if you want to play java based games or programs. The java update will uninstall the old java

Yes Java update is important and the update will un-install the old java version automatically.

JAVA update is not required, as long as you dont use some program that depends on specfic feature of newer version.

Personally I feel it is just a wastage of bandwidth to leave it running.

But you should keep it updated by checking out security updates related news & update it every 3-4 minor releases.

you dont need to uninstall; it will run over the old one and install the new one.

Java update is important.

You don't need to. The new installation does it.

Yes it is.